St. Charles electricity and gas rates
At typical use (1,011 kWh of electricity and 31 therms of gas a month), electricity and gas for a St. Charles house cost about $200 a month: about $2,390 a year. Estimated from public rates, not anyone's actual bill.
Who supplies power and gas to St. Charles houses and what a typical house uses: about 1011 kWh of electricity a month. The city adds a 6.7% utility users tax.
Electricity: AmerenUE (Union Electric Company)
Residential Anytime Service 1(M): summer June-September, winter October-May. Rates include the Rider FAC fuel adjustment of $0.00445/kWh (secondary service, Oct 2026-Jan 2027).
| Charge | Price |
|---|---|
| Fixed charge | $9.19 a month |
| First 750 kWhs a month | 12.72¢ |
| Next kWhs above 750 a month | 10.41¢ |
Gas: Spire Gas
Residential gas service: monthly customer charge plus a charge for gas delivered per Ccf.
| Charge | Price |
|---|---|
| Fixed charge | $22.00 a month |
| Per therm | $1.0731 |
Checked October 31, 2026. Every number here comes from the public sources listed, matched by our checker.
Rates change every year; this page shows when it was last checked. Nothing here is legal, tax or insurance advice.
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